Compression pump



Feb. .5, 1929;

E, HARR. s'r AL COMPRESSION rum;

Filed Jan. .4, 192a Jzzy. 1

INVENTORS .T/ a/ese; BY M/Vflfl? R 2M ATTORNEY Patented Feb. 5, 192:9. 1,791,003 barren stares Parser OFFICE;

ELMER HARE AND WALTER HARE, OE WALLACE, IDAHO.

GOMBRESSION PUMP.

'Application filed January 4:, 1928. Serial No. 244,520.

This invention relates to improvements in of the shaft 5 is continued, the disk will move compression pumps and more particularly to back from its dotted line position to its full such devices as are adaptable for use in the line position and so on. In otherwords, a compression of air, gases and the like. continued rotation of the shaft 5 about its I The principal object of the invention is to center will cause as oscillatory movement of provide a. device of such construction as to the disk 11. The position of the piston as withstand back pressure of air or the like in seen in full lines in Figure 1 is such that beits endeavor to escape when the density of neath the piston is an air chamber and the the compressed air has reached a very high port 13 being in registry with the port 16,

10 degree. a air of course instantly rushes in and fills the An important feature of the invention is air chamber 20. When the disk 11 in its rothat the device consists of very few moving tat-ion began to move the port 13 back to the parts; is easily disassembled and assembled; discharge port 17 of course all of the air that and is extremely compact and inexpensive had filled the chamber 20 was compressed as F of construction. the disk turned because on its return move Another important feature is that there is ment the piston moved steadily downward little friction between the parts having a but the air within the chamber 20 could not relative movement, thus preventing escape escape because the port 16 was moved out of of the air and resulting in a very low mainregistry with the port 13, so that when the tenance cost. parts reached their dotted line positions the The invention is illustrated in the accomair which had been compressed with such panying drawings, in which: great force in the chamber 20 immediately Figure 1 is a front elevation with the cover passed out through the discharge port 17 and removed. into the'container. As the disk then started 30 25 Figure 2 is an edgewise view. to move from that position so as to bring the Referring now more particularly to the intake ports 18 and 16 into registry, the air drawings, 1 indicates the walls of a housing, which had been compressed in the container the front plate 2 of which is secured by screws could not escape backwardly because the end 3 to the walls 1. The rear wall 1 and front of the piston was at the bottom of the cham- 30 plate 2 are bored out to revolubly receive a ber 20 and only commenced to rise from that shaft 5 driven by any approved means, as position after the discharge port 17 was efpulley 6 and belt 7. fectually closed. It will be understood of Eccentrically secured to the shaft 5 within course that the disk 11 in its oscillatory movethe interior 4 of the housing is a disk 8. 9 is ment in its seat is in such relation to the Walls 35 an eccentric strap which encircles the disk 8 of the seat that a practically air-tight joint and which is secured to a piston 10. 11 is results. It will further be noted that the air another disk which is diametrically bored to as it continues to be compressed more and slidably receive the piston 10, there being a more and becomes exceedingly dense in the floor 12 left at the bottom of the bore formed container is prevented by the end of the pis- 0 with an outlet 13, extending to the periphery ton, as already explained, and that in order to of the disk 11. escape the condensed air would have to be of The lower part of the housing is-solid, as such density or power as to shear off the at 15, except an appropriate space to revolushaft 5.

bly receive the disk 11. 16 is anintake port lVhile we have shown a particular form of and 17 is an outlet port, so arranged that in embodiment of our invention, we are aware movement of disk 11 the intake port 16 and that many minor changes therein will readily outlet port 17 will register with the port 13. suggest themselves to others skilled in the To the outlet port 17 is secured one end of a art without departing from the spirit and pipe 18 and the other end of that pipe is conscope of our invention. Ne, therefore, de-

50 nccted to a container into which the air or sire to avoid being limited to the exact form the like is to be compressed. of embodiment which we have herein shown As the shaft 5 is rotated in counter-clock and described. wise direction, it will of course cause the disk l lfhat we claim to be new is:

8 to move from its position, as seen in full in a con'ipression pump of the class de 55 lines in Figure 1, to its position as seen in scribed, a casing having an opening in the dotted lines in that figure, and as the rotation rear wall thereof, a front plate removably fitting the casing and having an opening opening in the said casing connected to the aligning with the opening in the casing, :1 interior of the cylinder bore with inlet and 10 shaft journaled in the bore formed by the exhaust openings in the casing. aligned openings, an eccentric carried by the In testimony whereof We afiix our signashaft, :1 piston driven by the eccentric, and a tures.

disk having a cylinder bore, the said disk being carried by the casing and mounted for v ELMER HARE. partial rotation to alternately register an WALTER HARE. 

